反应详情

A mixture of 1-(2-pyrrolidin-1-yl-ethyl)-1H-indazol-6-ylamine (48 mg, 0.21 mmol), (4-benzyloxy-phenyl)-acetic acid (50 mg, 0.21 mmol), ethyldimethylpropylcarbodiimide hydrochloride (47 mg g, 0.25 mmol), N-hydroxybenzotriazole (33 mg, 0.25 mmol), N-methyl morpholine (50 mg, 0.50 mmol) in 2 mL of DMF was shaken for 6 hours. The mixture was concentrated under reduced pressure, the residue was dissolved in 1.5 mL of a 1:1 mixture of dimethyl sulfoxide/methanol and purified by preparative reverse-phase HPLC. 1H NMR (300 MHz, DMSO-d6) δ ppm 1.62 (m, 4H), 2.44 (m, 4H), 2.82 (t, 2H, J=6.78), 3.60 (s, 2H), 4.38 (t, 2H, J=6.78), 5.09 (s, 2H), 6.97 (m, 2H), 7.11–7.45 (m, 8H), 7.65 (m, 1H), 7.93 (m, 1H), 8.12 (s, 1H), 10.27 (s, 1H); MS (DCI/NH3) m/z 455 [M+H]+.

1. concentrationThe mixture was concentrated under reduced pressure
2. dissolutionthe residue was dissolved in 1.5 mL of a 1:1 mixture of dimethyl sulfoxide/methanol
3. custompurified by preparative reverse-phase HPLC